5421685969 has 4 divisors (see below), whose sum is σ = 6196212544. Its totient is φ = 4647159396.

The previous prime is 5421685949. The next prime is 5421685979. The reversal of 5421685969 is 9695861245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5421685969 - 2¹¹ = 5421683921 is a prime.

It is a super-2 number, since 2×5421685969² = 58789357492902937922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5421685949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387263277 + ... + 387263290.

It is an arithmetic number, because the mean of its divisors is an integer number (1549053136).

Almost surely, 2^5421685969 is an apocalyptic number.

It is an amenable number.

5421685969 is a deficient number, since it is larger than the sum of its proper divisors (774526575).

5421685969 is an equidigital number, since it uses as much as digits as its factorization.

5421685969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774526574.

The product of its digits is 4665600, while the sum is 55.

The square root of 5421685969 is about 73632.0987681324. The cubic root of 5421685969 is about 1756.7560304656.

It can be divided in two parts, 54216 and 85969, that added together give a triangular number (140185 = T₅₂₉).

The spelling of 5421685969 in words is "five billion, four hundred twenty-one million, six hundred eighty-five thousand, nine hundred sixty-nine".